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Issue 5, 2017
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A H-titanate nanotube with superior oxidative desulfurization selectivity

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Abstract

H-Titanate nanotubes (H-TiNTs) were prepared and used as catalysts for the oxidation of dibenzothiophene (DBT), which is typically found in diesel. The catalyst was synthesized through a hydrothermal method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N2 adsorption–desorption. The effects of typical diesel components on sulfur removal from the model oil were also evaluated by adding various amounts of 1-octylene, xylene or cyclohexane to the oxidation system. The H-TiNTs exhibited superior catalytic selectivity in oxidative desulfurization (ODS) without an obvious decrease in activity in the presence of the various diesel compounds. Both UV and Raman spectroscopy analyses revealed that the Ti-hydroperoxide generated from H-TiNTs in the presence of hydrogen peroxide played a crucial role in the selective oxidation process. The oxidation mechanism was also explored.

Graphical abstract: A H-titanate nanotube with superior oxidative desulfurization selectivity

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Supplementary files

Article information


Submitted
26 Dec 2016
Accepted
24 Jan 2017
First published
25 Jan 2017

Green Chem., 2017,19, 1371-1377
Article type
Paper

A H-titanate nanotube with superior oxidative desulfurization selectivity

S. Lu, H. Zhong, D. Mo, Z. Hu, H. Zhou and Y. Yao, Green Chem., 2017, 19, 1371
DOI: 10.1039/C6GC03573F

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